Infected: A more serious looking version of doom shroom that walks around on really long legs instead of whatever the heck doom shroom does, and you have to cut his legs until he is on the ground.
Library: A bigger version of the possessed armor where you have to parry his attacks until there is an opening to attack it. It could also slice and it shoots a beam kind of like clouds neutral special in smash bros.
The mines: A bigger version of the skulls that would float up in the air and would shoot little balls down like the bone slimes shoot when they die, but parry able.